Long-term and Short-term Debt (Short-term with Maturities of Year or Less) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
Commercial paper	$ 99	$ 100
Other Short-term Borrowings	76	241
Short-term Debt	175	341
Average daily balance	$ 237	$ 300
Average days outstanding	157 days	155 days